JP2560280Y2 - Powder supply device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying powders for cosmetics, medicines, foods and the like, and more particularly, to a powder supply apparatus capable of efficiently supplying powders from a hopper with a mesh. Things.

[0002]

2. Description of the Related Art In general, powder cosmetics such as foundations are manufactured by filling a metal dish with a predetermined amount of cosmetic powder and press-molding the powder with a mold. FIG. 3 shows a schematic explanatory view of this manufacturing process.
In the figure, (11) is a turntable in a press molding machine, and a metal plate (12) filled with powder.
And the male mold (13) and the female mold (1) that receive the metal plate (12).
4) is rotated in a state where is set. The powder to be filled in the metal plate (12) is supplied from the accumulator (16) and an accumulator (16) that collectively stocks a large amount of powder and supplies the powder quantitatively by the supply screw (15). A hopper (18) with a mesh that receives the powder and supplies the powder to a lower powder receiver (17) through a mesh, and a female mold of the turntable (11) that supplies the powder supplied from the powder receiver (17). (1
4) through a filling hopper (20) provided with a filling rotary rod (19) for performing the filling by scrubbing.

[0003] In the above configuration, the reason why the powder is allowed to pass through the hopper with mesh (18) is as follows. That is, the powder is collectively stocked in the accumulator (16) and is supplied in a fixed amount from the accumulator (16) by the supply screw (15). However, the powder contains about 5 to 10% of an oil (binder) such as a foundation. The viscous powder is easily agglomerated at the time of supply by the supply screw (15) or the like, and if pressed as it is, the hardness of the product varies and the product becomes weak to impact, resulting in poor quality. It will cause problems. For this reason, a mesh-equipped hopper (18) having a stainless steel mesh of about 20 mesh is provided between the accumulator (16) and the filling hopper (20) so that the powder before filling is arranged in a stable state. -ing

The hopper with mesh (18) has a structure as shown in FIG. In the figure,
(1) is a cylindrical hopper main body for storing powder, and a stainless mesh (2) constituting a bottom surface of the hopper is provided at a lower end side of the hopper main body (1). Reference numeral (3) denotes a rotating shaft suspended from the rotating motor (not shown) in the hopper body (1), and a lower end of the rotating shaft (3) has a surface of the mesh (2). And a rubbing rod (21) provided so as to rub the powder on the mesh (2) into the mesh (2) extends in the diameter direction of the mesh (2) about the rotation axis (3). Mounted in shape.

[0005] In the hopper with mesh (18) thus constructed, when the rotary motor is rotated, a rubbing rod (21) rotating via a rotary shaft (3).
However, the powder is rubbed and passed through the mesh (2) while sliding on the mesh (2). (22)
Is a quantitative detection sensor provided to keep the amount of powder in the hopper body (1) constant.

[0006]

However, the capacity of the meshed hopper (18) and the surface area of the mesh (2) cannot be made too large due to restrictions on the mounting structure to the press molding machine. However, as a result, the amount of the powder passing through the mesh (2) within a certain period of time becomes insufficient, and a problem occurs that the amount of the powder becomes lower than the capacity of the filling portion thereafter. Further, when the powder is passed through the mesh (2), the rubbing rod (21) is brought into contact with the mesh (2) to rub the powder.
Clogging is likely to occur, and the processing capacity is further reduced. In particular, there is a remarkable decrease in performance of the powder having a high blending ratio of the binder, and the mesh (2) has to be enlarged in size, and the desired quality cannot be obtained. .

Therefore, it has been attempted to improve the sieving effect by attaching a vibrator or the like to the hopper with mesh (18) and applying vibration to the hopper body (1). However, applying vibration to the hopper main body (1) leads to promotion of adhesion of powder to the inner wall surface of the hopper main body (1), causing a reduction in operation rate and a decrease in yield, and a reduction in hopper main body (1). 1) There is a drawback that the internal cleaning work becomes difficult.

The present invention has been made in view of the above situation, and greatly improves the ability to supply powder from a hopper with a mesh, enables a stable supply over a long period of time, and provides cleaning. It is an object of the present invention to provide a powder supply device capable of simplifying operations and the like.

[0009]

Means for Solving the Problems To achieve the above object, the powder supply device of the present invention has the following configuration.
That is, in a powder supply device including a hopper main body that accommodates powder inside, and a mesh that is provided on the bottom side of the hopper main body and allows the powder to pass through, a rotation shaft connected to a rotation source; A stirring rod A attached to the lower end of the rotating shaft and extending in the diameter direction of the mesh near the surface of the mesh, and extending upward from at least one end of the stirring rod A along the inner peripheral wall surface of the hopper body. The rotating shaft, the stirring bar A and the stirring bar B have a hollow structure, and the stirring bar A and the stirring bar B open toward the mesh and the inner peripheral wall surface of the hopper body. A powder supply device having an air discharge port and an air supply means provided on an upper end side of a rotating shaft.

[0010]

According to the powder supply device of the present invention having the above-described structure, the rotating source is driven to rotate the rotating shaft, and the mesh and the hopper are formed by the stirring rods A and B connected to the rotating shaft. Since air can be blown against the inner peripheral wall of the main body, without increasing the size of the hopper main body,
It is possible to greatly improve the ability to supply powder through the mesh. Further, since the adhesion of the powder to the inner peripheral wall surface of the hopper body is suppressed, the yield is improved and the cleaning operation is simplified. Further, it is possible to improve the quality by making the mesh finer.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. Note that the same components as those of the above-described related art are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 1 shows an embodiment of the powder supply apparatus of the present invention. In the same figure, (3) is suspended in the hopper body (1), and its upper part is connected to a rotary motor (M) via a pulley (4) and a timing belt (5) to rotate in a predetermined direction. It is a rotation axis. A stirring rod A (6) extending in the diameter direction of the mesh (2) around the rotation axis (3) is connected to the lower end side of the rotation axis (3) so as to be located near the surface of the mesh (2). Have been.
A stirring rod B (7) extending upward along the inner peripheral wall surface (1a) of the hopper body (1) is connected to one end of the stirring rod A (6). In addition, the above stirring rod A
(6) has a length substantially equal to the diameter of the mesh (2), and the stirring rod B (7) has a height of the hopper main body (1) which depends on the amount of powder supplied to the hopper main body (1). 1/2 to 3 /
The length is set within the range of 4.

The rotating shaft (3), the stirring rod A (6) and the stirring rod B (7) have a hollow structure communicating with each other, and the stirring rod A (6) and the stirring rod B (7) have , A slit (8) as shown in FIG. The slit (8) is provided between the surface of the mesh (2) and the inner peripheral wall surface (1a) of the hopper body (1) in the hopper body (1).
A plurality of slits (8) having a width of about 0.1 m / m are provided at predetermined intervals along the axial direction of the stirring rods A (6) and B (7). It is.

Then, on the upper end side of the rotating shaft (3),
As shown in FIG. 1, 1 to 1 were cleaned through a filter.
A rotary joint (1) that supplies ² kg / cm ² of compressed air from the air tube (9) into the rotating shaft (3)
0) is attached, and compressed air is supplied from the stirrer A (6) and the stirrer B (7) as shown by the arrows in FIG. Curtain-shaped air is continuously discharged toward the inner peripheral wall surface (1a) of the hopper body (1).

In the above configuration, when the rotary motor (M) is rotated, the stirring rod A (6) and the stirring rod B
(7) is rotated via the rotating shaft (3), and the compressed air supplied from the rotary joint (10) to the rotating shaft (3) is discharged from the slit (8) to form a surface of the mesh (2). And it sprays on the inner peripheral wall surface (1a) of the hopper main body (1).

Therefore, by the action of the air blown from the stirring rod A (6) toward the surface of the mesh (2) and its rotating action, the powder passes through the mesh (2) in a stable state, The powder supply capacity is greatly improved. That is, the powder is not rubbed and passed through the mesh (2) as in the prior art, but is driven by the force of air discharged from the rotating stirring rod A (6).
Therefore, the mesh (2) can be passed through the mesh (2) very efficiently in a stable state for a long time without causing clogging of the mesh (2).

Further, since the problem of clogging of the mesh (2) is solved without rubbing the powder against the mesh (2), it is possible to use a mesh (2) having a considerably finer mesh. Fine powder can be obtained, and quality can be improved.

Further, since the stirring rod B (7) blows air while rotating along the inner peripheral wall (1a) of the hopper body (1), powder adheres to the inner peripheral wall (1a). This leads to improved yield and simplified cleaning operations.

In the above embodiment, the stirring bar B (7) is extended upward from only one end of the stirring bar A (6) extending in one direction. 6) may be a cross-shaped structure, for example, or a structure in which the stirring bar B (7) is extended upward from both ends of the stirring bar A (6). Further, a stirring rod A (6) and a stirring rod B (7)
In place of the slit (8) in the above embodiment, a plurality of small holes may be provided side by side as an air discharge port provided in
As a means for supplying air to the rotating shaft (3), various mechanisms can be used instead of the rotary joint (10).

[0020]

As described above, according to the powder supply device of the present invention, it is possible to greatly improve the ability to supply powder through a mesh without increasing the size of the hopper body. Become. Further, since the adhesion of the powder to the inner peripheral wall surface of the hopper body is suppressed, the yield is improved and the cleaning operation is simplified. Further, it is possible to improve the quality by making the mesh finer. Further, this powder supply device is extremely practical which can be widely applied in fields other than cosmetics such as medicines and foods.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a powder supply device of the present invention.

FIG. 2 is a perspective view showing a rotating shaft, a stirring rod A and a stirring rod B in the embodiment.

FIG. 3 is an explanatory diagram of a powder supply-filling step.

FIG. 4 is a longitudinal sectional view showing a conventional powder supply device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hopper main body 2 Mesh 3 Rotating shaft 6 Stirring bar A 7 Stirring bar B 8 Slit (air discharge port) 10 Rotary joint (air supply means)

Claims (1)

(57) [Scope of request for utility model registration] 1. A hopper body (1) for storing powder inside.
And a rotating shaft (3) connected to a rotating source (M) in a powder feeder comprising: a mesh (2) provided on the bottom side of the hopper body (1) and allowing the powder to pass therethrough;
A stirring rod A (6) attached to the lower end of the rotating shaft (3) and extending in the diameter direction of the mesh (2) near the surface of the mesh (2); and at least one end of the stirring rod A (6). And a stirring rod B (7) extending upward along the inner peripheral wall surface (1a) of the hopper body (1), and the rotating shaft (3), the stirring rod A (6) and the stirring rod Stick B
(7) is a hollow structure, and an air discharge port in which the stirring rod A (6) and the stirring rod B (7) are opened toward the mesh (2) and the inner peripheral wall surface (1a) of the hopper body (1). (8)
And an air supply means (10) provided on the upper end side of the rotating shaft (3).